6/27/2013 9:06 AM
I was wondering the same thing, one of our other city courses is using it and he has been pleased, but I thought he had mentioned he was getting longer control, maybe he was through this spring?
I wonder what the cost per acre is too, it might work mid-summer for me as a rotation with Daconil Action which is what the label suggests, as I'm going out at anywhere between 7 and 10 days during the summer with my Primo following the 200 gdd program.
I do know the only dollar spot I have seen this year was a week ago Wednesday (actually saw it the prior Monday the 17th of June, I had made a preventive application with Primo on June 15th with 3336 plus at 2 oz/1000 (lowest rate) but then had a deluge of rain about 2 1/2 hours after application, (we are talking over an inch of rain in about an hour, some parts of the city were getting up to 9 inches in 2 hours, we had at home 6 miles south 3.25" in an hour and half). The next day was rainy and cloudy also that Monday was cloudy, So I went down with a Daconil Ultrex application on that Wednesday the 19th and have been clean so far. Did make my Primo application again this past Sunday without a fungicide and will make another Primo application (if the forecast holds) this Sunday morning but with a fungicide application.
I try to look at cost per acre, and cost per day with fungicides but also making sure they work too. We have had dollar spot in the past be an issue, so I try to avoid it when possible, we were clean last year and except for those few spots on a few greens last week, we've been clean this year.
Thanks!
Mel
Melvin H. Waldron III, CGCS, Horton Smith Golf Course, City of Springfield/Greene County MO